Complete built upper receiver:
- 10.5″ barrel chambered in 300BLK with a 1:8 twist
- Birdcage flash hider
- Pistol length gas system
- 10″ m-lok handguard
- Flat-top mil-spec upper receiver with installed dust cover and forward assist
- No BCG or charging handle
Direct Link: https://3crtactical.com/product/300blk-ar-pistol-upper-10-5-barrel-18-twist-10-m-lok-rail/